You're never required to tip so the "advertised price" and the price at the register are identical. You choosing to leave $2 on top of that doesn't change anything, even if it's only done through social pressure.

Now it just comes across as you saying that half the country is above 5%, which would’ve been a more honest statement as it seems considering few states however around 5% combined sales tax: https://taxfoundation.org/data/all/state/2023-sales-tax-rate...

My source shows that the combined average sales tax (i.e. state, county, city and municipal) comes down to 6.57%, 6.59% if you don’t count DC.

26 of them have an average combined sales tax of 7% or more.

Which bit do you not understand? End point taxes are not ubiquitos, and at least other countires have decent laws so people can see what they actually pay.

> > says "latte 4.50"

> > pay 6.50

> You're never required to tip so the "advertised price" and the price at the register are identical. You choosing to leave $2 on top of that doesn't change anything, even if it's only done through social pressure.

Taxes and tips aren't the same thing. Their $2 example is something you are required to pay.

You can't pre-calculate the final taxed price using the local tax algorithms as they are today. They number can't be known until the transaction takes place.

In any case, I'm not saying that it can't be done, just that it may be a lot complicated than adding a fixed percentage to every price label.

In the US the sales tax for a given in-person sale is the state sales tax, plus possibly county sales tax, city sales tax, and sometimes even special tax district sales tax.

For remote sales, it is similar except the tax is computed using the buyer's location rather than the seller's location.

Companies already manage seperate ads in the EU for language, currency and price discrimination reasons, it's really not a huge bother.